Design And Implementation Of A Vison Test System Based On Mobile Sensing

With the popular use of smart phones and rapid increase of mobile users, the cell phone is becoming more and more intelligent and open. The demand for multidirectional applications in smart phone is stronger. Meanwhile, people are more concern about the interaction between the user and the phone. They want the cell phones can provide information that is related with people themselves. While in the smart phone, camera can be used to get rich image data and combine with image analysis techniques to get the results we need. This paper will mainly talk about designing and developing one visual acuity measurement application based on mobile phone sensing.This paper firstly introduces the research background and main content of the subject, and summarizes the relevant technical background of mobile phone sensor application development. According to the feature and requirement of the software, it does demand analysis and confirms the functions of the visual acuity measurement system. This application has7modules:the interface module, the image display module, the introduction module, the visual acuity measurement module, the result saving module, the database module and the history module. This paper introduces the general design and the detailed design of each module. It refines the function modules using example figures and flowcharts, and describes the implementation of the key functions. In the end, system test and compatibility test are executed, study result is summarized, and further improvement method of the visual acuity measurement application is given.This topic is based on the Android platform and finally designs and implements a vision test software to achieve users’ requirement. The software has completed the relevant tests and the functional requirements of vision measurement.